Total Views: 474
Direct Research Journals
Vol.2 (7), pp.82-97, August 2014
ISSN: 2354-4147

Article Number: DRJA17087722

Original Research Article

Rajesh Kumar Jain

Botany Department,G.G D.S.D College,Palwal (Haryana) India.

date Received: April 9, 2014     date Accepted: May 24, 2014     date Published: August 30, 2014


Linum genotype with explorable traits for environment performance remain a major concern to plant breeders. Practical breeding programme require knowledge of gene action explorable for yield improvement. This study aims to analyse the flowering phenology variation, and fitness, for this reason. Additionally, an attempt is made to identify proximate environmental suitability that may cue the flowering, and ultimate causes for the flowering patterns. There were significant differences among all the genotypes for all the characters of flowering performance. The character like branch number at first flower and bud number at first flower showed the high heritability estimates with high predicted genetic advance. Moderate heritability with low genetic advance estimate has been observed for the characters like days to first flower from first bud and average daily flower production. Some 55 days are required for first bud and 69 days for first flower. The whole phase of bud development was completed in 15 days from bud initiation. The single continuous flowering period has been found to be 54 days and 4-5 flowers produced daily on a single plant. Flowers start to bloom at 6 to 6.30 A.M and continue till 8.30 to 9.00 A.M in all the varieties. The maximum anthesis has been observed between 7.30 to 8.00 A.M. The corollas were shed about 5.30 hours after the beginning of anthesis. So the petals drop off between 11.30 A.M to 3.00 P.M on the same day. The shedding of corolla was completed in 3.30 hours and the speedy hours were 1.30 to 2.00 P.M. The characters at maturity are the essence of all the study and also practically interlinked with crop growth and development. Most of the characters under this heading showed high heritability with high genetic advance. The high heritability with moderate genetic advance has been observed for the characters like seed per capsule ,vegetative and reproductive phase length, harvest index and fruit breadth. The character like biological yield has maximum positive direct effect on economic yield followed by harvest index , the biological yield has highest positive direct effect on seed yield followed by harvest index and single continuous flowering period. The 1000 seed weight has highest positive indirect effect on economic yield via character like biological yield followed by harvest index, flower number per plant, capsule number per plant, reproductive phase length, secondary branch number and plant height at maturity.

Key Words: Linseed, flowering performance,flowering pattern, variability, path analysis.